Triggered factors and structure-activity relationship in the dynamic reconstruction processing of MOF for the alkaline oxygen evolution reaction

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216235 - 216235

Published: Oct. 1, 2024

Language: Английский

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Covalent organic framework/aluminum oxide composite nanosheets as efficient sulfur host materials for high performance lithium-sulfur batteries

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114083 - 114083

Published: Feb. 1, 2025

Language: Английский

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Precision-Grown Bi₂O₂Se Flakes for Exceptional Electrocatalytic Performance in Acidic Medium

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Efficient hydrogen production via electrochemical water splitting is vital for sustainable energy applications, with the HER in acidic media requiring highly effective catalysts. In this study, we report synthesis of Bi2O2Se nanosheets through a scalable hydrothermal method, achieving exceptional catalytic performance conditions. The exhibit low overpotential 104 mV at 10 mA cm–2, significantly outperforming other bismuth-based superior activity attributed to unique structural and electronic properties Bi2O2Se, which provide abundant active sites enhance charge transfer efficiency. Electrochemical studies, including Tafel slope analysis impedance spectroscopy, confirm rapid kinetics reduced charge-transfer resistance. Additionally, catalysts demonstrate excellent long-term stability under conditions, maintaining their during extended electrolysis. This work highlights potential as efficient cost-effective catalyst tailored applications. dual-electrode system comprising Bi2O2Se@CP cathode RuO2@CP anode demonstrated outstanding overall splitting. required battery voltage only 1.49 V achieve current density highlighting electrocatalytic efficiency conjunction RuO2. By offering valuable insights into design optimization materials, these findings pave way advancing technologies solutions.

Language: Английский

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Engineering the Sandwich‐Type Porphyrinic MOF‐Ruthenium–Nickel Foam Electrode for Boosting Overall Water Splitting via Self‐Reconstruction

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract The rational construction of a hierarchical noble metal–metal‐organic frameworks (MOFs) structure is anticipated to yield enduring and highly efficient performance in alkaline electrocatalytic water splitting. Herein, sandwich strategy employed enhance the stability, wherein active RutheniRu (Ru) nanosheets are incorporated onto nickel foam (NF) subsequently covered with porphyrinic MOFs (PMOFs). In addition, activated PMOF‐NiOOH‐Ru 20 /NF‐C/A electrodes obtained by electrochemical self‐reconstruction as cathode anode, respectively. Density functional theory (DFT) calculations demonstrated that resulting heterointerface effectively facilitated electron transfer, enhanced H 2 O adsorption capacity, optimized Δ G values for * OOH. Consequently, exhibited low overpotentials hydrogen evolution reaction (HER) oxygen (OER), accompanied minimal Ru leakage. Furthermore, stable overall splitting can be achieved voltage 1.456 V@10 mA cm −2 over 120 h. Even when operated simulated seawater, prepared similar activity stability. This study contributes deeper understanding regulation mechanism stability sites process.

Language: Английский

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Bimetallic metal nanoparticles-decorated metal-organic frameworks as high-performance electrocatalysts for hydrogen evolution via alkaline water electrolysis

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 120, P. 129 - 136

Published: March 27, 2025

Language: Английский

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